METEORITE CHELYABINSK, LL5 CHONDRITE - 100% CRUSTED LARGE INDIVIDUAL 27,18 grams

EUR 270,00 Compralo Subito, EUR 6,00 Spedizione, Garanzia cliente eBay
Venditore: stranger.seeds ✉️ (189) 99.2%, Luogo in cui si trova l'oggetto: Vercelli , IT, Spedizione verso: WORLDWIDE, Numero oggetto: 354932303127 METEORITE CHELYABINSK, LL5 CHONDRITE - 100% CRUSTED LARGE INDIVIDUAL 27,18 grams. An operation to recover it from the lake began in September 10, 2013, and concluded in 16 October 2013 with the raising of the rock with an estimated mass of 654 kg (1,442 lb). It was examined by scientists and then handed over to the local authorities.

METEORITE CHELYABINSK, LL5 CHONDRITE - 100% CRUSTED LARGE INDIVIDUAL 27.18 grams (private collection)

 

The Chelyabinsk meteorite is the fragmented remains of the large Chelyabinsk meteor of 15 February 2013 which reached the ground after the meteor's passage through the atmosphere. The descent of the meteor, visible as a brilliant superbolide in the morning sky, caused a series of shock waves that shattered windows, damaged approximately 7,200 buildings and left 1,500 people injured. The resulting fragments were scattered over a wide area.

The largest found fragments having a total mass of 654 kg (1,442 lb) were raised from the bottom of Lake Chebarkul on 16 October 2013.

 

NAMING

The meteor and meteorite are named after Chelyabinsk Oblast, over which the meteor exploded. An initial proposal was to name the meteorite after Lake Chebarkul, where one of its major fragments impacted and made a 6-metre-wide hole in the frozen lake surface.

 

COMPOSITION AND CLASSIFICATION

The meteorite has been preliminarily classified as an ordinary chondrite. First estimates of its composition indicate about 10% of meteoric iron, as well as olivine and sulfides.

 

ASTEROID

The impacting asteroid started to brighten up in the general direction of the Pegasus constellation, close to the East horizon where the Sun was starting to rise. The impactor belonged to the Apollo group of near-Earth asteroids.

The asteroid had an approximate size of 18 metres (59 ft) and a mass of about 9,100 tonnes (10,000 short tons) before it entered the denser parts of Earth's atmosphere and started to ablate. At an altitude of about 23.3 km (14.5 miles) the body exploded in an air burst. Meteorite fragments of the body landed on the ground.

Analysis of three fragments using optical microscopy, electron microscopy, Raman spectroscopy, and isotopic composition techniques used to date Solar System objects, showed the isotopic clocks in the asteroids (rubidium and strontium ratios, argon isotope ratios) appear to have partially or totally reset in past collisions. The isotopic clock resets may result from thermal effects changing isotopic ratios, and changes to cosmic radiation exposure. The asteroid appears to have had eight major collisions, around 4.53, 4.45, 3.73, 2.81, and 1.46 billion years ago, then at 852, 312, and 27 million years ago.

 

METEORITE

Scientists collected 53 samples nearby a 6-metre-wide hole in the ice of Lake Chebarkul, thought to be the result of a single meteorite fragment impact. The specimens are of various sizes, with the largest being 5 kg (11 lb), and initial laboratory analysis confirmed their meteoric origin.

In June 2013, Russian scientists reported that further investigation by magnetic imaging below the location of the ice hole in Lake Chebarkul has identified a 60-centimetre-large (2.0 ft) meteorite buried in the mud at the bottom of the lake. An operation to recover it from the lake began in September 10, 2013, and concluded in 16 October 2013 with the raising of the rock with an estimated mass of 654 kg (1,442 lb). It was examined by scientists and then handed over to the local authorities. It was then put on display at the Chelyabinsk State Museum of Local Lore, causing protests from the followers of the recently set-up 'Church of Chelyabinsk Meteorite'.

In the aftermath of the superbolide air burst, a large number of small meteorite fragments fell on areas west of Chelyabinsk, including Deputatskoye, generally at terminal velocity, about the speed of a piece of gravel dropped from a skyscraper. Local residents and schoolchildren located and picked up some of the meteorites, many located in snowdrifts, by following a visible hole that had been left in the outer surface of the snow.

 

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SHIPPING

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TERMS OF SALE

The pictures in the advertisement are real photos of the object for sale that we took in person in order to guarantee full transparency on the type and the condition of the item. Scale cube is 1 cm3 (0,39 in), as a reference in our photographs where the size of the object would not otherwise be known. We remain at your disposal for any further information or clarification. Most of the meteorites that we offer here on our Ebay store are either solid iron meteorites or contain quite a bit of iron in them. What this means is that they will require maintenance; and depending on where you live, they could require a lot of work, or even be unstable. The primary reason for this is humidity. We can not guarantee a meteorite to remain stable for any length of time because we can not control how it is maintained or stored once it has left us. If you live in a humid area, please contact us and ask any questions you may have prior to purchasing (alternatively consult our "Meteorites Preservation" document). We guarantee the authenticity of each item we sell, nonetheless they will be sent without an official COA (certificate of autenticity). As you can see, feedback is our guarantee. Should the transaction not fulfill your expectations, we will be ready to meet your requirements. However, please contact us before giving neutral or negative feedback, as in that case we will consider the transaction concluded and will rule out the possibility of issuing a refund. Any problem can be usually solved easily, but if you give neutral or negative feedback we will be automatically discharged from any obligation we have towards buyer. If you are not satisfied with your purchase, you may return it to us, provided that you communicate the return of the item within 14 days of the date of purchase. Items must be returned in perfect condition, sealed when expected. Shipping costs that have been paid at the moment of purchase and those paid for the return of the item are at the buyer's expense.   

PAYMENT

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  • Condition: Nuovo

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